Wu, Xinjie
Qi, Yingna
Tan, Mingsheng
Yi, Ping
Yang, Feng
Tang, Xiangsheng
Hao, Qingying
Funding for this research was provided by:
Capital Characteristic Clinical project of Beijing Municipal Science & Technology Commission (NO. Z161100000516009)
Article History
Received: 29 November 2017
First Online: 21 April 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Ethical approval for this study was obtained from local Medical Ethics Committee.